Edward Abbey Diane Ackerman Ayaan Hirsi Ali Nujood Ali Lori Alvord Reza Aslan Anna Badkhen David Baron Neal Bascomb Ishmael Beah Melba Pattillo Beals Colin Beavan Leonard Bird John C. Bogle Mark Boyle T. C. Boyle Ray Bradbury Michael Braungart Rinker Buck Michael Burgan Ernest Callenbach Novella Carpenter Paulo Coelho Rich Cohen Bryce Courtenay June Cross Ted Dekker Waris Dirie Cory Doctorow Michael T. Dolan Firoozeh Dumas Debra Magpie Earling Aladdin Elaasar Anne Fadiman Mohammed Al Fahim Kathleen S. Fine-Dare Doug Fine Helen Fremont Alexandra Fuller Lucy Grealy Roya Hakakian Philip Hallie Kristen Iversen Jerry McGill William Kamkwamba Tracy Kidder Barbara Kingsolver Nicholas D. Kristof Penny Le Couteur Doris Lessing Paul Rogat Loeb Wangari Maathai Jim Malusa Lisa Margonelli Yann Martel Christopher McDougall Bill McKibben Catherine E. McKinley Dan Millman Stacy Mitchell Greg Mortenson Cathy Small Sonia Nazario Barack Obama Claudia L. Osborn Jillip Naysinthe Paxson John Perkins Jodi Picoult William Powers Chad Pregracke Daniel Quinn Slavomir Rawicz Matt Ridley Pietra Rivoli Elizabeth Royte Ariel Sabar Adam W. Shepard E. Benjamin Skinner Rebecca Skloot Thomas Sowell Louise Teal John Kennedy Toole Paul VanDevelder Jeannette Walls Eric Weiner Terry Tempest Williams The Freedom Writers William P. Young Peter Zuckerman